I've taken a list of English words, and examined each of them to see what they sound like (using the PHP metaphone function). This page lists the most common metaphone codes, along with their words. You can also search for a word of your own, and see which words sound similar - and which ones rhyme, and which ones alliterate.
setous setose sets situs stoss suets setts stoas seats stows settees suds sots sits sods suits sudds sudsy seeds sades stays satis sides cetes sates sties stews sites sodas soots zetas satays sautes seduce suedes suites suttas soddies suttees
riotous setous hiatus toys kotows ottos kotos ghettoes lottos iodous quietus stoss toss ketose mottoes meatus knouts vetoes touse setose coitus outs tutus taus touts tods pouts tattoos dittos datos tows toes piteous situs fetus photos retuse rotos louts nodus lotos hideous nodous foetus vodous vatus luteous etuis stows mottos gouts jatos lotus kowtows autos odious ouds ghettos routs modus douse tuis bouts battues patois taos stoas fatuous ratos dattos buteos duteous tedious beauteous tots tuts pottos shouts
set seat seta setae sett settee stoa stoae stoai stow suet suety